Pink's Rescued Puppy -- On The Mend [Pics]

Here she is ... Stella ... the adorable little puppy who was thrown off an L.A. overpass by some heartless scumbag ... and could have died ... if not for an unbelievable act of kindness from P!nk.

TMZ broke the story ... P!nk dropped $5,000 to pay for emergency lifesaving surgery for the puppy after learning she suffered 3 broken legs after being tossed into the L.A. river.

Thanks to P!nk, Stella has made an inspiring recovery and has since been adopted by a loving family.